/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:54:08,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:54:08,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-09 23:54:08,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:54:08,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:54:08,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:54:08,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:54:08,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:54:08,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:54:08,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:54:08,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:54:08,567 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:54:08,568 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:54:08,569 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:54:08,569 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:54:08,569 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:54:08,569 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:54:08,569 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:54:08,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:54:08,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:54:08,570 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:54:08,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:54:08,571 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:54:08,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:54:08,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:54:08,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:54:08,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:54:08,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:54:08,572 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:54:08,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:54:08,573 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:54:08,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:54:08,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:54:08,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:54:08,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:54:08,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:54:08,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:54:08,574 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:54:08,574 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2024-02-09 23:54:08,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:54:08,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:54:08,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:54:08,845 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:54:08,847 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:54:08,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl [2024-02-09 23:54:08,848 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-rwlock.bpl' [2024-02-09 23:54:08,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:54:08,876 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:54:08,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:54:08,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:54:08,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:54:08,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,919 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 22 [2024-02-09 23:54:08,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:54:08,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:54:08,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:54:08,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:54:08,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:54:08,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:54:08,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:54:08,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:54:08,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/1) ... [2024-02-09 23:54:08,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:08,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-02-09 23:54:09,059 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:54:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:54:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:54:09,059 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2024-02-09 23:54:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2024-02-09 23:54:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2024-02-09 23:54:09,059 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2024-02-09 23:54:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2024-02-09 23:54:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2024-02-09 23:54:09,060 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2024-02-09 23:54:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2024-02-09 23:54:09,060 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2024-02-09 23:54:09,060 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-09 23:54:09,099 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:54:09,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:54:09,187 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:54:09,208 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:54:09,208 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2024-02-09 23:54:09,210 INFO L201 PluginConnector]: Adding new model sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:54:09 BoogieIcfgContainer [2024-02-09 23:54:09,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:54:09,211 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:54:09,211 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:54:09,214 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:54:09,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:54:09,214 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:54:08" (1/2) ... [2024-02-09 23:54:09,229 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c1c796b and model type sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:54:09, skipping insertion in model container [2024-02-09 23:54:09,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:54:09,230 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:54:09" (2/2) ... [2024-02-09 23:54:09,231 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum-rwlock.bpl [2024-02-09 23:54:09,294 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-09 23:54:09,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 36 transitions, 93 flow [2024-02-09 23:54:09,331 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2024-02-09 23:54:09,331 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-09 23:54:09,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-02-09 23:54:09,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 36 transitions, 93 flow [2024-02-09 23:54:09,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 30 transitions, 78 flow [2024-02-09 23:54:09,342 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:54:09,342 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:54:09,343 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:54:09,343 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:54:09,343 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:54:09,343 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:54:09,343 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:54:09,343 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-09 23:54:09,343 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 37 places, 30 transitions, 78 flow [2024-02-09 23:54:09,346 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:54:09,347 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-09 23:54:09,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-09 23:54:09,347 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:54:09,349 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:54:09,349 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 37 places, 30 transitions, 78 flow [2024-02-09 23:54:09,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:54:09,350 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-09 23:54:09,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-09 23:54:09,351 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:54:09,354 INFO L748 eck$LassoCheckResult]: Stem: 44#[$Ultimate##0]true [90] $Ultimate##0-->L64: Formula: (= v_x_1 0) InVars {} OutVars{x=v_x_1} AuxVars[] AssignedVars[x] 46#[L64]true [83] L64-->L66: Formula: (= v_y_1 0) InVars {} OutVars{y=v_y_1} AuxVars[] AssignedVars[y] 48#[L66]true [116] L66-->L17: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 50#[L66-1, L17]true [2024-02-09 23:54:09,354 INFO L750 eck$LassoCheckResult]: Loop: 50#[L66-1, L17]true [96] L17-->L19: Formula: (= (+ v_x_5 1) v_x_4) InVars {x=v_x_5} OutVars{x=v_x_4} AuxVars[] AssignedVars[x] 53#[L19, L66-1]true [97] L19-->L17: Formula: (= (+ v_y_4 1) v_y_5) InVars {y=v_y_5} OutVars{y=v_y_4} AuxVars[] AssignedVars[y] 50#[L66-1, L17]true [2024-02-09 23:54:09,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:54:09,358 INFO L85 PathProgramCache]: Analyzing trace with hash 118970, now seen corresponding path program 1 times [2024-02-09 23:54:09,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:54:09,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510705836] [2024-02-09 23:54:09,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:54:09,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:54:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:09,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:54:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:09,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:54:09,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:54:09,444 INFO L85 PathProgramCache]: Analyzing trace with hash 4034, now seen corresponding path program 1 times [2024-02-09 23:54:09,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:54:09,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601696178] [2024-02-09 23:54:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:54:09,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:54:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:09,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:54:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:09,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:54:09,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:54:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash 114333243, now seen corresponding path program 1 times [2024-02-09 23:54:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:54:09,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290828099] [2024-02-09 23:54:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:54:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:54:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:09,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:54:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:54:09,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:54:09,530 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:54:09,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:54:09,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:54:09,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:54:09,530 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 23:54:09,530 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:54:09,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:54:09,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-rwlock.bpl_BEv2_Iteration1_Loop [2024-02-09 23:54:09,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:54:09,531 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:54:09,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:09,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:09,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:54:09,599 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 23:54:09,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:09,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-02-09 23:54:09,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:09,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:09,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-02-09 23:54:09,667 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:09,667 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=4}, {y=3}, {y=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:09,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:09,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:09,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-02-09 23:54:09,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:09,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:09,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-02-09 23:54:09,761 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:09,761 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=2}, {x=5}, {x=-6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:09,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:09,784 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:54:09,784 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:54:09,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:54:09,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:54:09,784 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 23:54:09,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:54:09,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:54:09,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-rwlock.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:54:09,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:54:09,785 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:54:09,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:09,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:09,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:54:09,839 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:54:09,839 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 23:54:09,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:09,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-02-09 23:54:09,869 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:09,869 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {T1Thread1of1ForFork0_thidvar0=0} Honda state: {T1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 23:54:09,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:09,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,881 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-02-09 23:54:09,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:09,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-02-09 23:54:09,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,925 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-02-09 23:54:09,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:09,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:09,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:09,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=2}, {x=5}, {x=-6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:09,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:09,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:09,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:09,970 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:09,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-02-09 23:54:09,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:54:09,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:10,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-02-09 23:54:10,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:54:10,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:54:10,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:54:10,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-02-09 23:54:10,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:54:10,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:54:10,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:54:10,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=4}, {y=3}, {y=-8}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-02-09 23:54:10,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-02-09 23:54:10,056 INFO L201 PluginConnector]: Adding new model sum-rwlock.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:54:10 BoogieIcfgContainer [2024-02-09 23:54:10,056 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:54:10,057 INFO L158 Benchmark]: Toolchain (without parser) took 1181.16ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 134.8MB in the beginning and 209.2MB in the end (delta: -74.4MB). Peak memory consumption was 25.7MB. Max. memory is 8.0GB. [2024-02-09 23:54:10,059 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 176.2MB. Free memory was 135.9MB in the beginning and 135.9MB in the end (delta: 81.3kB). There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:54:10,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 176.2MB. Free memory was 134.7MB in the beginning and 144.4MB in the end (delta: -9.7MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. [2024-02-09 23:54:10,061 INFO L158 Benchmark]: Boogie Preprocessor took 45.07ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 151.7MB in the end (delta: -7.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-02-09 23:54:10,061 INFO L158 Benchmark]: RCFGBuilder took 242.87ms. Allocated memory is still 176.2MB. Free memory was 151.7MB in the beginning and 140.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-02-09 23:54:10,062 INFO L158 Benchmark]: BuchiAutomizer took 845.40ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 140.3MB in the beginning and 209.2MB in the end (delta: -68.9MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. [2024-02-09 23:54:10,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 176.2MB. Free memory was 135.9MB in the beginning and 135.9MB in the end (delta: 81.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 176.2MB. Free memory was 134.7MB in the beginning and 144.4MB in the end (delta: -9.7MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.07ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 151.7MB in the end (delta: -7.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 242.87ms. Allocated memory is still 176.2MB. Free memory was 151.7MB in the beginning and 140.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 845.40ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 140.3MB in the beginning and 209.2MB in the end (delta: -68.9MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:0. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {x=0, y=0, freshIdentifier7=0} State at position 1 is {x=0, y=0, freshIdentifier8=1} For i>1, the state at position i is {x=0 + sum_{k=0}^i 2 + 5 + -6, y=0 + sum_{k=0}^i 4 + 3 + -8, freshIdentifier9=1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 1, 1, 1, 1, 1] Mus: [0, 0, 0, 0, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L63] 0 x := 0; [L64] 0 y := 0; [L66] FORK 0 fork 1 T1(); Loop: [L18] x := x + 1; [L19] y := y - 1; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-02-09 23:54:10,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...